Did Paul Blaspheme?

It's important to know whether Paul is truly a man of God if one is to follow his teachings.  He abolished many of the laws that Jesus (pbuh) Himself followed.  He ended a covenant between God and Abraham (pbuh) which was supposed to be everlasting.

Genesis 17:¹⁰This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised.¹¹And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.  ¹²And he that is eight days old shall be circumcised among you, every man child in your generations, he that is born in the house, or bought with money of any stranger, which is not of thy seed. ¹³He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.

Here is something else to consider:

From Theopedia: An Encyclopedia of Biblical Christianity

The nature of God can be helpfully described in terms of different attributes. An "attribute" can be understood as something God possesses, or in other words, that which is attributed to him that makes him God.

Of course, all of Gods attributes must be positive, and perfect.  If one were to give God an attribute that does not belong to him, he would be blaspheming God.  For example, if one were to say, "The weakness of God is stronger than us all," he would be committing blasphemy because weakness is not an attribute of God, would you agree?

Find your bible, and turn to 1 Cor 1:25, and you'll find the following verse from Paul:

"For the foolishness of God is wiser than men, and the weakness of God is stronger than men" (1Cor.1:25)

Can someone please explain how this verse can be when foolishness and weakness are not attributes of God?

Especially in light of this verse

"But I tell you that anyone who is angry with his brother will be subject to judgment. Again, anyone who says to his brother, 'Raca, ' is answerable to the Sanhedrin. But anyone who says, 'You fool!' will be in danger of the fire of hell." - Matthew 5:22

The word was used as an attribute of God. (When you say the "foolishness" of God, then you've just made foolishness an attribute to him.)
 

How can Paul, a supposed man of God, chosen, or claimed by himself to have been, by  Jesus (pbuh) blasphemy against God?  It's important to note that Muslims recognize the Torah, Psalms, Gospels, but not the books of Paul.  Paul's teachings contradict many of those of Jesus (pbuh).